Impact of erosion testing aspects on current and future flight conditions

Gohardani, Omid

doi:10.1016/j.paerosci.2011.04.001

Cited by 124 publications

(82 citation statements)

References 85 publications

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“…A specific flight scenario may expose the airframe of the aircraft to various factors related to weather conditions such as lighting strikes, gust, rain, hail, snow and in rare conditions volcanic ash [1]. Although it is unlikely that an aircraft will be subjected to all of these conditions simultaneously, the sudden temperature change that the vehicle experiences between on-ground conditions and the cruise altitude can be considerably significant.…”

Section: Figurementioning

confidence: 99%

“…Liquid water content, droplet size, surface characteristics and temperature, further define the character of the formed ice on the aircraft [2]. In extreme cases these impacts may result in rain erosion on the aircraft fuselage [1]. Due to the adverse impact that icing can impose on the aircraft's flight characteristics, various measures are taken in order to minimize the effects of icing such as usage of thermal, mechanical and chemical ice protection systems.…”

Section: Figurementioning

confidence: 99%

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The Exploration of Icephobic Materials and Their Future Prospects in Aircraft Icing Applications

Gohardani¹

2012

J Aeronaut Aerospace Eng

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Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

The Exploration of Icephobic Materials and Their Future Prospects in Aircraft Icing Applications

Gohardani¹

2012

J Aeronaut Aerospace Eng

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“…To mention a few; the material has to withstand erosion, stress, and other weathering conditions in terms of its structural integrity. The material needs to preserve its initial characteristics related to icephobicity regardless of erosion and corrosion [8]. Finally, the material should be inexpensive to manufacture, easy to apply, and environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Flight test results for autonomous icing protection solution for small unmanned aircraft

Sørensen

Johansen

2017

2017 International Conference on Unmanned Aircraft Systems (ICUAS)

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Abstract-The primary focus of the work presented in this paper is a proof-of-concept study of a novel electro-thermalbased autonomous icing protection solution (IPS) for small unmanned aircraft. The solution includes a central control unit, where several control algorithms, ensure temperature control of electro-thermal sources, applied to exposed aircraft surfaces. The solution includes three different control procedures (icing detection, anti-icing, and de-icing) that are validated through test flights conducted in Ny-Ålesund, Svalbard, Norway.

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“…For this reason, researchers have conducted various research efforts in order to examine the infl uence of CNTs on the mechanical properties of the aforementioned materials [2,24]. A factor of great importance in aerospace applications due to high speed fl ight of, for instance, Earth entry vehicles and aircraft, is erosion [3]. In particular, Gohardani et al [4], examined the erosion resilience, mechanical properties and acoustic impedance of a selection of polymer matrix composites reinforced with CNTs at 0.5% wt.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and static wettability of advanced materials used in aeronautical applications

Gohardani¹,

Hammond²

2013

Int. J. CMEM

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The search for icephobic external surface materials in aircraft icing applications has been ongoing since the early days of aviation. Given the recognized superlative properties of carbon nanotubes (CNTs) across many different disciplines, the implementation of CNTs in polymer matrix composites has sparked a great interest in their mechanical/electrical properties and wetting character, in addition to their suitability for aircraft icing applications. Within this framework, a new developed methodology capable of determining the nature of wettability, consequent to CNT implementation is desired. Thus, this article presents a novel methodology -henceforth referred to as the dynamic and static wettability scheme for advanced materials -which examines the wettability of materials reinforced with CNTs, for potential utilization within the aerospace industry. The described methodology herein can be employed in order to numerically examine empirically acquired results with an extended possibility to include alternative materials outside the scope of the considered ones. Results are shown for a decision matrix that discriminates between hydrophobic and hydrophilic surfaces based on their static and dynamic wettability properties. Moreover, idealized wetting character representations of the different considered aerospace materials are presented. Keywords: aerospace materials, aircraft icing, carbon nanotube wettability, corona splashing measurement tool, dynamic and static wettability scheme for advanced materials, fl uid structures, hydrophilicity, hydrophobicity, liquid water concentration. INTRODUCTIONThe usage of polymeric matrix composites has become more frequent in a number of different industries including electronics, the automotive and the aerospace industry [1]. The aerospace sector in particular has embraced the usage of polymeric matrix composites in civil and military aircraft, often with weight consideration in mind. Due to the superior mechanical and physical properties that have been observed in carbon nanotubes (CNTs), a natural consideration is whether CNTs can be utilized as reinforcing agents to further enhance the mechanical and physical properties of polymeric matrix composites. For this reason, researchers have conducted various research efforts in order to examine the infl uence of CNTs on the mechanical properties of the aforementioned materials [2,24]. A factor of great importance in aerospace applications due to high speed fl ight of, for instance, Earth entry vehicles and aircraft, is erosion [3]. In particular, Gohardani et al. [4], examined the erosion resilience, mechanical properties and acoustic impedance of a selection of polymer matrix composites reinforced with CNTs at 0.5% wt. for potential use in aeronautics. In this study, some disparities were observed between the different properties of the materials, but nominally similar erosion resilience values for the considered materials were encountered despite the presence of CNTs. The reasoning behind this observation was attribu...

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Impact of erosion testing aspects on current and future flight conditions

Cited by 124 publications

References 85 publications

The Exploration of Icephobic Materials and Their Future Prospects in Aircraft Icing Applications

The Exploration of Icephobic Materials and Their Future Prospects in Aircraft Icing Applications

Flight test results for autonomous icing protection solution for small unmanned aircraft

Dynamic and static wettability of advanced materials used in aeronautical applications

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